Air duct

ABSTRACT

An air duct includes a frame and a number of guiding members detachably mounted to the frame. The frame includes two opposite sidewalls each defining a number of through holes. Each guiding member includes a plate and a pole connected to a side of the plate. Two protrusions are respectively formed on opposite ends of the pole, to be extended through two corresponding ones of the through holes respectively defined in the two sidewalls, and then are blocked by outer surfaces of the corresponding sidewalls.

BACKGROUND

1. Technical Field

The present disclosure relates to an air duct.

2. Description of Related Art

An air duct for guiding airflow generated by a fan generally includes aframe including two opposite sidewalls, and a plurality of guidingpieces detachably mounted between the sidewalls. Each sidewall defines aplurality of fixing holes, opposite ends of each guiding piece areinserted into two corresponding fixing holes of the sidewalls, to fixthe guiding piece to the sidewalls. However, these guiding pieces may bedisengaged from the corresponding fixing holes easily. As a result, theguiding pieces may drop into the frame and cause damage to the fan.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the present embodiments can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present embodiments.Moreover, in the drawings, all the views are schematic, and likereference numerals designate corresponding parts throughout the severalviews.

FIG. 1 is an assembled, isometric view of an exemplary embodiment of anair duct and a fan.

FIG. 2 is an exploded, isometric view of the air duct of FIG. 1.

FIG. 3 is an enlarged view of the circled portion III of FIG. 1.

DETAILED DESCRIPTION

The disclosure, including the accompanying drawings, is illustrated byway of example and not by way of limitation. It should be noted thatreferences to “an” or “one” embodiment in this disclosure are notnecessarily to the same embodiment, and such references mean at leastone.

Referring to FIG. 1 to FIG. 3, an exemplary embodiment of an air ductincludes a frame 10 and a plurality of guiding members 20 for guidingairflow generated by a fan 40.

The frame 10 includes two opposite sidewalls 12, a top wall 14perpendicularly connected between top ends of the sidewalls 12, a bottomwall 16 perpendicularly connected between bottom ends of the sidewalls12, and a cover 18 perpendicularly connected to front sides of thesidewalls 12, the top wall 14, and the bottom wall 16. Each sidewall 12longitudinally defines a plurality of through holes 120 adjacent to arear side of the sidewall 12. Each through hole 120 includes twofan-shaped holes 122 communicating with each other.

Each guiding member 20 includes a plate 24, and a pole 22 connected to aside of the plate 24. An annular protecting portion 26 extends from thecircumference of the pole 22, at each end of the plate 24. A protrusion28 is formed on each of opposite ends of the pole 22. Each protrusion 28comprises two fan-shaped block 280 connected to each other. Two engagingprotrusions 30 protrude from the circumference of the pole 22 betweeneach protrusion 28 and the corresponding protecting portion 26. Eachengaging portion 30 is perpendicularly connected to an outer surface ofthe corresponding protecting portion 26 away from the other protectingportion 26, spaced from the corresponding protrusion 28, andperpendicular to the fan-shaped block 280. Each engaging portion 30 alsoaligns with one of the two concave portions 282 formed at the joint ofthe fan-shaped block 280.

In assembly of each guiding member 20 to the frame 10, the guidingmember 20 is deformed to curve. The protrusions 28 aligning with thecorresponding through holes 120 of the sidewalls 12 from a space betweenthe sidewalls 12, and the fan-shaped blocks 280 are aligned with thecorresponding fan-shaped holes 122. The guiding member 20 is thenallowed to restore, thereby the fan-shaped blocks 280 are extend throughthe corresponding fan-shaped holes 122. The blocks 280 are then rotatedabout 90 degrees and blocked by outer surfaces of the correspondingsidewalls 12, to prevent the guiding member 20 from disengaging from thesidewalls 12. At this time, the engaging protrusions 30 are aligned withand movably received in the corresponding fan-shaped holes 122. Theprotecting portions 26 are respectively blocked by inner surfaces of thesidewalls 12 opposite to the blocks 280. The fan 40 is accommodatedamong the cover 18, the guiding members 20, the sidewalls 12, the topwall 14, and the bottom wall 16.

In use, if the direction of the airflow from the fan 40 needs to beadjusted, each of the guiding members 20 can be rotated about the pole22. The rotation angle of the guiding member 20 can be limited by theengaging portions 30 contacting the sidewalls 12 at the joints of thefan-shaped holes 122.

It is believed that the present embodiments and their advantages will beunderstood from the foregoing description, and various changes may bemade thereto without departing from the spirit and scope of thedescription or sacrificing all of their material advantages, theexamples hereinbefore described merely being exemplary embodiments.

What is claimed is:
 1. An air duct, comprising: a frame comprising twoopposite sidewalls each longitudinally defining a plurality of throughholes; and a plurality of guiding members detachably mounted between thesidewalls, each guiding member comprising a plate and a pole connectedto a side of the plate, opposite ends of the pole and rotatablyextending through two corresponding ones, respectively defined in thetwo sidewalls, of the through holes, two protrusions formed at oppositeends of the pole, each protrusion extending through one of the throughholes and blocked by an outer surface of the corresponding sidewall. 2.The air duct of claim 1, wherein a protecting portion extends from thecircumference of the pole, adjacent to each of opposite ends of theplate and blocked by an inner surface of the corresponding sidewallopposite to the corresponding protrusion.
 3. The air duct of claim 1,wherein each through hole comprises two fan-shaped holes communicatingwith each other, each protrusion comprises two fan-shaped blocksconnected to each other and respectively extending through thecorresponding fan-shaped holes of the corresponding through hole andblocked by the outer surface of the corresponding sidewall.
 4. The airduct of claim 3, wherein two engaging protrusions extend from thecircumference of the pole between each protrusion and the correspondingprotecting portion and respectively spaced from the two protrusions;said two fan-shaped blocks of each protrusion forms two concave portionsat a joint of the two fan-shaped blocks and each of the two engagingprotrusions aligns with one of the two concave portions and is movablyreceived in one of the corresponding fan-shaped holes.